C. Write True or False : 1. The compounds that have sour taste belong to base group 2. All acids contain hydrogen element. 3. Bases have bitter taste. 4. Lemons and oranges contain citric acid. 5. Salts are mostly solid. 6. Sodium carbonate is used for washing clothes.
Answers
Answer:
Explanation:
1. false because The sour taste of foods and beverages is largely due to organic acids, including acetic, citric, malic, and fumaric acids in fruits and vegetables and tartaric acid in wine. Dilute solutions of many inorganic acids also taste sour. One example is the phosphoric acid in cola beverages.
2. false Not all substances that contain hydrogen, however, are acids, and the first really satisfactory definition of an acid was given by Justus von Liebig of Germany in 1838.
3.true Acids give off H+ (Hydrogen) ions in water; bases give off OH- (Hydroxide) ions in water. Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion; but they may have other tastes depending on the other part of the molecule. Bases are usually soapy in nature.
4 true Citric acid (2-hydroxy-1,2,3-propanetricar-boxylic acid) is a weak tricarboxylic acid that is naturally concentrated in citrus fruits.
5.Solid salts tend to be transparent as illustrated by sodium chloride. ... Salts exist in many different colors, which arise either from the anions or cations.
6.Washing soda is a chemical compound with the formula Na2CO3, also known as sodium carbonate, and it's a salt of carbonic acid. Some use washing soda to make homemade laundry detergent, to clean especially in hard water, and some even use it as a laundry additive to soften water.